<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <h1>首页-DTL</h1>
<p>用户名：{{ username }}</p>
<p>年龄：{{ age }}</p>
    <img src="{{ img_url }}" alt="">
<h3>用户列表</h3>
{% for user in list_users %}
    <p>用户名：{{ user.name }}</p>
    <p>年龄：{{ user.age }}</p>
{% endfor %}
    <h3>猫的信息</h3>
{{ cat.display }}
</body>
</html>